Surprisingly good
I've always had a distaste for stick movies because they've been so overused that it's hard to find anything that hasn't been done a thousand times before. So as soon as I noticed that this movie was a stick animation, my interest started to fade- that is, until the action started.
It's been a long time since I've seen such a well-animated and visually interesting stick film; or almost any Flash film, for that matter. The action was intense, varied, and nonstop; the camera angles were very creative, well-thought out, and flowed very nicely; the theme was interesting (not the most original idea, but it moved the action along nicely and was very well executed); and to top it all off, the setting was great (I loved the dark overcast sky and the ominous castle).
The only thing I would recommend is working some more on the sound; the music was pretty good, but some good sound effects would have really taken things to the next level. Overall, a very high quality action movie with great production values. Great job!